BENEFIT Extension Study

Extension Study of the BENEFIT (304747) and BENEFIT Follow-up (305207) Studies to Further Evaluate the Progress of Patients With First Demyelinating Event Suggestive of Multiple Sclerosis

To assess the long-term effects of early therapeutic intervention, i.e. within two years following a first clinical demyelinating event suggestive of MS.

Inclusion Criteria:

• All patients randomized and treated at least once in study 304747

Exclusion Criteria:

• Medical, psychiatric or other conditions that compromise the patient's ability to understand the purpose of the study